/*
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package demo910;

/**
 *
 * @author Administrator
 */
public class StudentTest1 {
    public static void main(String args[]){
        Student sa=new Student("123","li",90);
        Student sc=sa;
        sc.setScore(95);
        System.out.println(sc.getScore());
        System.out.println(sa.getScore());
    }
}
